Magazine pencil



mm meza-"1981* 1333244 uNi'raD- s'rATi-:s PATENT' OFFICEl f G'EQBG EUBERT DZIAMBOB., OF .AL'IIONA-KLIIlJEI'J'L0'1.I!BBK,..GEB'MAIiIYgL SIGIWORl T THE FIRM SIHPLO I'LLFEDEB GESELLBCEAFT V088, LLUSEN Dm- BOB, OF EAHBUBG, GERMANY IGAm PEN'CII' Applieation flled February S 'I, 1930, Serial ilo. 481,986, and In Germany February 88, 1989;

Certain of the existing maazine peneils lin which th'elead is propelle by a pin or 4 plunger moving within a guide are open to the objection that the' lead when writing 5 has 'the tendency torotate owing to the pressure exercized by the hand, which tendency is' found to beinconvenient. I According to the present invention this' I drawback is avoided byv rougheni'ng the abutjj ting faces of the prolseller pin and the 'writing lead, or gi'vingt es'e faoes unevennesses.v rlfhere is thus ensured a good hold in that in propelling the lead by the pin the un- V evenness of' the abutting'faces engage one. another' and offer so much resistance to rotation that the lead cannot rotate; that is, the lead is clutched to the pin or plunger. Fig. 1 of the accom anying drawings is a longitudinal sectiono that partof the pencil gu vhich the propeller pin abuts against the' ea i i i Fig. 2 is an' end view of the pencil; Fig. 3-is'a plan'view on an enlarged'scale 1 showing the corrugationsv on thev face of the cj. .J .'.As usual, the barrel a' is' screwed tothefi tip b formig the guide of the writin 'lead d, which is ropelled by the pin o T e pin' c yis provi ed with unevennesses e on its front' face, and the r'ear face' of the lead d. abutting against the end of the pin c is also g provided with unevennesses, so' that the unf evennesses of, the two abuttin faces engage one .another on'contaetin'g. y this means -v ;5 the lead is prevented from rotating,.while' the ncil is in use'. The unevennesses e-. may efl'ect'ed in various ways, for instance,l by providin the faces in question with ribs j or. with telelet similar to 1:krose-bit, by 'knurl- 40" ,rongem'ngorte'a' ii ciaimz o g A magazine pencil in which :A the abutting; facesv of the propeller in and the lead are'- each provided'with a p urality of serrationa adapted for interengagement'. j

In testimony .Whereof I have signed my name to'this ification. 

